摘要
首先采用模型试验和数值模拟的方法分析了太湖水厂取水口周边在抽吸作用下的流场特性,开展取水口50∶1的缩尺模型试验,应用PIV技术测量了抽吸时取水口周边的流速场;采用FLUENT软件对取水口周边1∶1的流场进行了数值模拟,运用缩尺模型试验的结果验证了数值模型的合理性。然后,基于前人关于泥沙起动流速与止动流速的研究成果,结合取水口周边流场数值模拟结果,分析了取水口抽吸作用对底泥及悬浮泥沙的扰动作用。结果表明,在单一抽吸工况下,抽吸作用对悬浮泥沙的运动存在较为显著的影响。
Model tests and numerical simulations were first employed to analyze the characteristics of the flow field around the suction water intake of Taihu Water Treatment Plant.A 50:1 model test was carried out and PIV technology was used to measure the flow field surrounding the water intake during suction.FLUENT was used to numerically simulate the 1:1 flow field around the water intake,and the rationality of the simulations was then verified by the results of the model tests.Based on the previous research on the incipient and ceasing motion of sediment with the simulation results of the flow field,the disturbing effect of suction on the deposits and suspended sediments was discussed.It was found that suction had significant influences on the movement of suspended sediments under a single suction condition.
作者
陈佳代
余新建
顾玥琦
张仪萍
周永潮
Chen Jiadai;Yu Xinjian;Gu Yueqi;Zhang Yiping;Zhou Yongchao(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Yuyao Public Project Construction and Management Center,Yuyao Zhejiang 315400,China)
出处
《科技通报》
2021年第8期100-107,共8页
Bulletin of Science and Technology
基金
湖州南太湖水源供水区饮用水安全保障综合应用示范(2017ZX07201003)
关键词
数值模拟
取水口
模型试验
流速
numerical simulation
water intake
model test
velocity
